Oh okay thanks! You think that could be my problem. ? It starts only when I put gas in the motor head. It will rev super then die( probably because it's burning all the gas) think oil or gease can do the trick?no i cant find one right know but if slide is aligned properly and you screwed the top on all the way it should almost be closed all the way.If you take carb off you should be ble to full throttle it and carb should slide up all the way and be non visible besides the needle.